Method of making cocks or valves



P 1931- J. D. BALDWIN, JR 1,825,042

METHOD OF MAKING qocxs OR VALVES Filed May 5. 192a FIE-1 A F75. Y 7 Iaaozntoz .7 17- B/mwwfi- Patented Sept. 29, 1931 UNITED STATES PATENTOFFICE JOHN D. BALDWIN, 33., OF CLEVELAND, OHIO, ASSIGNOR TO ALBERT J.WEATHER- HEAD, JR., OF CLEVELAND, OHIO mmnon or MAKING cocxs on VALVESApplication filed May s, 1928. Serial No. 274,705.

Lect of the invention is to produce a valve ody in a facile andinexpensive way by automatic machinery, using drawn or extruded brassrods or bars of special formation. As an exemplification of one form ofarticle which can be made in that way, see the accompanying drawings, inwhich Fig. 1 is a perspective view of a rabbeted rod which is partlyround and partly rectangular, and from which a valve body may be readilyproduced. Fig. 2 is a sectional view and side elevation of the same rodwith a valve body partly produced thereon. Figs. 3 and 4 are side andend views of the valve body shown in Fig.

i 1, but severed from the rod. Fig. 5 is a side view of the valve body,and Figs. 6, 7 and 8, are sectional views thereof, illustrating foursuccessive steps in the production thereof after it has been severedfrom the rod. Fig. 9 is a sectional view, on .a larger scale, of thevalve body as it appears after the last or 11nishing step. Fig. 10, is asectional view, of the finished valve body and a screw-valve member,assembled. Fig. 11 is a sectional view of a modified form of rod stock.

In practicing this method, a brass rod or bar A of a predetermined crosssectional shape is first produced or provided. This rod or bar may be ofextruded stock, or stock formed into the desired cross sectional shapeby drawing, rolling or in any other suitable way. As an exemplificationof two cross sectional forms of rod which may be used to produce anangular valve body B, simply and cheaply, reference may be had to Figs.Land 11 in the drawings. In Fig. 11 the rod is of key-hole shape incross section, and in Fig. 1, the rod is of corresponding shape, thatis, it if of reduced width or rabbeted lengthwise at 2-2 to provide anarrow flange, rib or exan angular valve body as hereinafter set forth.

Thus, rod A is introduced into and fed through a collet in an automaticscrew machine, the enlarged body portion 4 of the rod being fed axiallythrough the collet with the angular rib or rabbeted portion 3 off centerin respect to said axis. The end portion of the rod is then turned downto two different diameters at two separated places to provide a largecylindrical extension 5 and a smaller cylindrical extension 6axially ofthe larger body portion 4 of the rod. The stock intermediate or betweenthe two cylindrical portions 5 and 6 retains the contour or shape of theoriginal rod, but while the rod is still held in this same automaticscrew machine, the outer or larger cylindrical extension 5 is drilledsubstantially its full length and the outer corner edge of the drilledopening 8 is chamfered. These operations being completed the largerextension 5 is threaded, preferably with a die, and the smallercylindrical portion 6 is also threaded, preferably severed or cut oif.

The next step involves the placing of the cut-off section or valve bodyB (see Fig. 3) within the chuck or-collet of a second automatic screwmachine to permit operations to proceed on the squared or angularprojection 3' which extends from the middle of body B at right angles tothe cylindrical portions 5 and 6. Then the angular projection 3' isturned round (see Fig. 5) and at the same time drilled to differentdiameters. thereby providing an annular valve seat 9 at the intersectionof a small bore 10 and a larger counterbore or entrance 11, see Fig. 6.The round proieotion 3' is then threaded on the outside, and thecounterbore 10 tapped, see Fig. 7. A round hole 12 is then drilledaxially within the smaller cylindrical extension 6, see Fig. 8.

The next operation consists in placing the product of the aforementionedsteps in a machine which drills two round communicating holes orpassages 14 and '15 in body B be- 14 and 15' are drilled in oppositedirections.

tween the inner ends of the drilled openings 8 and 12 andthe oppositesides of bores '11 and 10, respectively. The holes 14 and 15 are drilledat an inclination relatively to the axes of end openings 8 and12 so asto communicate with bores-11 and 10 above and below the valve seat 9.Preferably, the angle holes simultaneously, but'they can be drilled in adrill press separately at increased production costs.

The valve body per se is now com le'ted, and a valve member C havlng ascrew-t readed stem 16 and a handle 17 may be screwed into thescrew-threaded bore 11, and a packing nut or cap 18 may bescrew-connected with the external screw-threads on the side pro ectionor extension 3, as delineated in Fig; 10,

thereby completing the valve.

The steps taken to produce a finished valve body from solid rod stockare rapidly and accurately performed, and the cost of production of ashut-off cook or valve made in the way described is greatly reducedcompared with other methods and practlces known to me, and furthermore,the product itself is exceptionally sturdy and satisfactory for thepurposes intended, especially in the diminutive sizes which are usedextensively with copper pipes of small diameter, for example, with therelatively small air and gasoline feed pipes used generally inautomobiles.

What I claim is: l

1. A method of producing a valve body, which includesthe steps offorming a reduced cylindrical'portion off center in and lengthwise of arod, and of severing from the main body of the rod a section thereofadjacent to and including said cylindrical portion.

2. A method of'producing a valve body from a rod or bar of varying widthin cross section, which includes the formation of a reduced cylindricalportion longitudinally in the wider part of the bar, and the productionfrom the narrower part of thebar of a cylindrical extension at rightangles to the axis of said bar.

3. A method of producing an angular body from a rabbeted rod or bar,which includes the step of forming cylindrical portions at spacedintervals lengthwise of the bar in the main body of the bar, and ofproducing a cylindrical extension at right angles to said main body inthe rabbeted portion of the bar intermediate said cylindrical portions.

4. A method of producing an angular body consisting in machining asection of a rod at spaced intervals lengthwise of its axis andeccentric thereto to a cyliiidrical form, in turning the unmachinedportion of said severed part to a cylindrical form around.an axis atright angles to the main axis of the severed part, and in drillingseparate openjunction with the main body of the rod; in

turning and screw-threading the angular projection'; and in drillingcommunicating passages at different angles through said cylindricalportions and'angular projection.

6. A method of producing a valve body, consisting in placing a rod ofirregular crosssectional shape off-center in the collet of an automaticscrew-machine, and forming spaced cylindrical portions and anintermediate angular portion: coincidently in a section of said rod by aturning operation; in rolling a screw-thread on the turned cylindricalportion before severing the treated section; in drilling one ofsaidcylindrical portions; in severing the section. at its juncture with themain body of the rod; in turning and screw-threading 'the'angularportion; in. drilling bores of different diameter axially of the turnedangular portion and in the main body of the severed section; and thendrilling communicating passages th'rough said cylindrical portions andthe body;

7. A method of producing a valve body, which consists in forming spacedcylindrical portions and a right-angled extension in a rod, of varyingwidth in cross section, in

drical portions at an angle to the axis thereof to communicate with saidbore on opposite sides of said valve seat.

8. A method of producing a passaged body, from rod stock which is partlyangular and partly round in cross section, consisting in making asection of the rounded portion of the rod cylindrical and leaving theangular portion extend at right angles to the axis of the cylindricalportion, in drilling said angularly related portions to provideangularly related communicating passages, and in screwthreading thecylindrical extension and the entrance to one of said passages.

9. A method of producing a relatively small valve body'from solid rodstock which is partly round and enlarged and partly of reduced angularand rabbeted formation, consisting. in removing portions of the angularrabbeted portions at spaced intervals in the rod and coincidentlyforming spaced cylindrical portions in the enlarged part of the rod, insevering the partially completed valve body from the rod, in turning thereduced rabbeted portion of the body cylindrical and drilling atransverse opening therein while coincidently forming a valve seatcentrally of the body, and in drilling openings through the spacedcylindrical portions at an inclination to the axes thereof and tocommunicate with said transverse opening in opposite sides of said valveseat.

10. A method of producing a valve body from a solid rod of varying widthin cross section, consisting in turning the rod to a cylindrical form atspaced intervals and leaving an angular projection intermediate thecylindrical portion, in drilling one cylindrical part and rolling ascrew-thread on the other cylindrical part and then severing the piecewhich has been operated upon from the main body of the rod, andsubsequently drilling the said piece to provide communicating passagesand a valve seat.

11. In a method of producing an angular body from a solid rod ofirregular contour in cross section, the steps herein described of borinone end of a rod and forming reduced cylin ricai portions at spacedintervals lengthwise of the rod parallel with the ofiset in respect tothe main axis of the rod and then severing the part so formed adjacentto one of said cylindrical portions, and subsequently forming acommunicating passage in said part with said bore.

12. A method of producing a passaged body from a revolving rod ofirregular width in cross section, including the steps of forming reducedscrew-threaded cylindrical portions co-incidently at spaced intervals inthe rod while drilling an opening in one end thereof, then severing fromthe main body of the rod the part operated upon, and finally inproducing intersecting passages in said part.

13. A method of producing a passaged body consisting in forming spacedcylindrical por tions and a right-angled extension in a rod of varyingwidth in cross section, in screwthreading said cylindrical portions, indrilling one screw-threaded part and then severing the piece which hasbeen operated upon from the main body of the rod, in drilling atransverse opening in said piece within the rightangled extension whileco-incidently forming a valve seat centrally of the body, and indrilling openings through the spaced cylindrical portions at one side ofthe axis thereof in' communication with said transverse opening atopposite sides of said valve seat. 14. A method of producing a valvebody, whichincludes the steps of forming reduced cylindrical portions atspaced intervals lengthwise o a rod and offset to the main axis of therod, and severing of equal sections including said cylindrical portionsof the main body of said rod.

15. A method of producing an angular body, consisting in machining a barof irregular configuration in cross section to smaller dimensions atspaced intervals, drilling an opening axially in one end of the bar,

severing the machined and drilled portions from the main body of thebar, and subsequently drilling an opening in the severed product at anintersecting angle to the first opening.

16. A method of producing an angular body, which includes the steps offorming a reduced cylindrical portion off center in and lengthwise of arod, and of severing from the main body of the rod a section thereof adjacent to and including said cylindrical portion.

17. A method of producing an angular body, which includes the steps offorming reduced cylindrical portions at spaced intervals lengthwise of arod and ofi'set to the main axis of the rod, and of severing the sectionso formed from the main body of the rod.

18. A method of producing an angular.

body from rabbeted rod or bar, which includes the step of formingcylindrical portions at spaced intervals in the main body of the bar,and of producing an enlarged extension at right angles to the axis ofsaid bar intermediate said cylindrical portions.

In testimony whereof I aflix my signature.

- JOHN D. BALDWIN, JR.

